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ostrichism

noun
os·​trich·​ism | \ |ˌchizəm, |ˌji-\
plural -s

Definition of ostrichism

: the deliberate avoidance or ignorance of conditions as they exist : self-delusion ostrichism will not, of course, save one single American— Pearl Buck perhaps the lack of fear is a result of what might be called ostrichism— John Gunther

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